Oldest
Apollo program: Apollo 10 returns to Earth after a successful eight-day test of all the components needed for the forthcoming first crewed moon landing.
Roughly four million people, mostly students, demonstrate across the world to address climate change. Sixteen-year-old Greta Thunberg from Sweden leads the demonstration in New York City.
William Howard Taft is elected the 27th President of the United States.
Newest
Proud of your result? Share your genius with the world!